25005422 has 8 divisors (see below), whose sum is σ = 40393416. Its totient is φ = 11540952.

The previous prime is 25005397. The next prime is 25005443. The reversal of 25005422 is 22450052.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×25005422² = 1250542258796168, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 25005394 and 25005403.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 480848 + ... + 480899.

It is an arithmetic number, because the mean of its divisors is an integer number (5049177).

Almost surely, 2^25005422 is an apocalyptic number.

25005422 is a deficient number, since it is larger than the sum of its proper divisors (15387994).

25005422 is a wasteful number, since it uses less digits than its factorization.

25005422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 961762.

The product of its (nonzero) digits is 800, while the sum is 20.

The square root of 25005422 is about 5000.5421706051. The cubic root of 25005422 is about 292.4229109922.

Adding to 25005422 its reverse (22450052), we get a palindrome (47455474).

The spelling of 25005422 in words is "twenty-five million, five thousand, four hundred twenty-two".